ML20148E401
| ML20148E401 | |
| Person / Time | |
|---|---|
| Issue date: | 12/29/1994 |
| From: | Matthews D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Verrelli D NRC (Affiliation Not Assigned) |
| Shared Package | |
| ML20148E385 | List: |
| References | |
| FOIA-96-485 NUDOCS 9706030087 | |
| Download: ML20148E401 (2) | |
Text
.
s I
e From:
David M.
Vgerelli (DMV)f fg To:
DBM, Alf/Z.. u A A 1H hee 42r Date:
Thursday, December 29, 1994 7:36 am
)
Subj ect s-Conference Call #
as I have the same conference line for both this am & im 1
10:00 Crystal Performance Review 1
h 2:00 StLucie Enforcement Panel
.J CC:
BXU, LJW2, LXR1, JAN2 9706030087 970530 i
BINDER 96-485 s ee -
i Information in in In accordance Wit t%' s deleted
- 9 Act, exemptions reedom ofInformation Folg.
(C&D]
o nt y
&6 h & ed YAfo f4 I
i LISTIC EVALUATION OF ST. LUCIE LER 94-006-01
! 'he event of interest is a Loss of Coolant Accident (LOCA) coincident ltithaLossof"3ffsitePower(LOOP)andfailureofoneEmergencyDiesel
, ten m tor to Start.
ine period of exposure is assumed to be one year.
l-roa the St. Lucie IPE the following initiating event frequencies and eliability data were obtained:
f(LOCA)= 1.42E-03/yr._(small-small LOCA frequency) a.
f(LOSP)= 1.50E-01/yr (loss of grid frequency) p(EDG-FTS)= 8.26E-03/ demand (probability that EDG fails to start)
(1.42E-@
- 1.5E-01
- 8.26E-03)/365 - 4.82E-09/yr (i.e. the frequency of LOCA coincident with LOSP and EDG HS is app.cximately 5.0E-09/yr using St. Lucie plant-specific data)
Ising g:neric data the following result is obtained:
f(LOCA)= 2.66E-02/yr f(LOSP)= 3.39E-02/yr p(EDG-FTS)= 2.57E-02/ demand (2.66E 02
- 3.39E-02
- 2.57E-02)/365
,6.35E-08/yr e e ic estimates yield a result of appro ately r
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.id f
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